Small gastrointestinal stromal tumor concomitant with early gastric cancer: A case report

Figure 1 Esophagogastroduodenoscopic examination. A: A 0.4-cm sessile polyp with a smooth surface is seen at the right upper posterior wall of the gastric fundus. B: An approximately 1.7 cm  × 1.4 cm, depressed, flat white-red based lesion with oozing hemorrhages is present at the gastric angle.

Figure 2 A The excised 1. 1-cm fundal tumor showing gray fleshy and nodular cut surface; B and C: Its histologic picture demonstrating whorling bundles of spindle cells with a mitosis (arrow, H&E, × 200); D: staining of spindle cells for CD117 (IHC, × 200); E: subtotal gastrectomized specimen showing a 1.7 cm ×1.4 cm ulcerative mass at the angularis of the lesser curvature side; F: tumor showing signet ring cells within the lamina propria histologically (H&E, × 200); G: tumor stained for PAS-diesterase (×200); H: tumors stained for cytokeratin (IHC, ×200).